I ask something makes me confused.
In generating singlet oxygen molecule, I initially thought a light (photon) can excite the ground state oxygen molecule.
However, my colleague said that process is forbidden as fermion and boson hate each other.
I insisted these are all boson because ground state oxygen molecule has its intrinsic angular momentum of S=1.
I know there must be wrong reasoning in my thought. Otherwise liquid oxygen has to show Bose-Einstein condensation.
Cannot oxygen molecule really absorb a photon to be singlet oxygen molecule?